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DTSTART;TZID=America/Chicago:20250506T110000
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DTSTAMP:20260526T025156
CREATED:20250428T173728Z
LAST-MODIFIED:20250428T173728Z
UID:586408-1746529200-1746536400@www.iccsafe.org
SUMMARY:Detailing for Increased Breakout Capacity of Steel Anchor Rods in Concrete Podium Slabs
DESCRIPTION:Multi-story light-frame structures are often built atop concrete podiums\, and in areas of high seismicity the overturning restraint system used to secure shear walls in these buildings can produce very high tension demands on the concrete anchorage components of these systems. While the loads can be high\, podium slabs tend to be fairly shallow (14” or less)\, and the design resistance calculated according to code provisions often isn’t enough. While anchor reinforcement detailing is address in ACI318\, the form it would need to take in slab situations is not addressed. Recognizing this\, a small group of practicing engineers\, funded by a SEAONC Special Projects Initiative and supported by Simpson Strong-Tie\, began an ambitions investigation into how to provide detailing (anchor reinforcing) that increases the breakout resistance of concrete anchors in podium slabs. \nRegister here.  \n11:00 AM – 1:00 PM PT
URL:https://www.iccsafe.org/news-and-events-calendar/detailing-for-increased-breakout-capacity-of-steel-anchor-rods-in-concrete-podium-slabs/
CATEGORIES:Education Calendar
ORGANIZER;CN="S. K. Ghosh Associates":MAILTO:kbhaumik@skghoshassociates.com
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DTSTART;TZID=America/Chicago:20250507T110000
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DTSTAMP:20260526T025156
CREATED:20250428T173912Z
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UID:586410-1746615600-1746622800@www.iccsafe.org
SUMMARY:New Seismic Design Provisions for One-Story Structures with Flexible Diaphragms and Rigid Vertical Elements
DESCRIPTION:It has long been recognized that the seismic response of one-story tilt-up concrete wall buildings (and similar buildings with flexible diaphragms and rigid vertical elements) is controlled by the flexible diaphragm much more than the rigid vertical elements. Widely used seismic design provisions have not recognized or incorporated this behavior\, however. Now\, new seismic design provisions recently developed for ASCE 7-22 explicitly recognize this response behavior\, drawing from extensive numerical studies published in the guideline document Seismic Design of Rigid Wall-Flexible Diaphragm Buildings: An Alternate Procedure (FEMA P-1026) and supplemental studies of bare steel deck diaphragms. In fact\, the new design provisions go a step further to introduce a zone of reduced shear demand that improves seismic performance by allowing distributed yielding away from the diaphragm perimeter. This webinar will first present the concepts behind the new seismic design provisions\, and the numerical studies addressed in FEMA P-1026 and supplemental bare steel deck diaphragm studies. A design example will then be presented\, along with design and detailing tips and recommendations for practicing engineers. \nRegister here.  \n11:00 AM – 1:00 PM PT
URL:https://www.iccsafe.org/news-and-events-calendar/new-seismic-design-provisions-for-one-story-structures-with-flexible-diaphragms-and-rigid-vertical-elements-2/
CATEGORIES:Education Calendar
ORGANIZER;CN="S. K. Ghosh Associates":MAILTO:kbhaumik@skghoshassociates.com
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